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Triethylamine → HCID 178461555, Verbindung

HRID 1267983
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1267983
[Cl:1][C:2]1[CH:28]=[CH:27][C:5]([O:6][CH2:7][C:8]([N:10]2[CH2:15][C@H:14]([CH2:16]O)[N:13]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([F:25])=[CH:21][CH:20]=3)[CH2:12][C@H:11]2[CH3:26])=[O:9])=[CH:4][CH:3]=1.C(N(CC)CC)C.CS(Cl)(=O)=O.[NH:41]1[CH:45]=[N:44][N:43]=[N:42]1>C(Cl)Cl>[Cl:1][C:2]1[CH:28]=[CH:27][C:5]([O:6][CH2:7][C:8]([N:10]2[CH2:15][C@@H:14]([CH2:16][C:45]3[NH:44][N:43]=[N:42][N:41]=3)[N:13]([CH2:18][C:19]3[CH:20]=[CH:21][C:22]([F:25])=[CH:23][CH:24]=3)[CH2:12][C@H:11]2[CH3:26])=[O:9])=[CH:4][CH:3]=1
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Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 11441144(2R,5R)-1-((4-chlorophenoxy)methyl)carbonyl-2-methyl4-(4-fluorobenzyl)-5-((hydroxy)methyl)piperazineHCID 178418441HCID 178418441, Verbindung

Produkt 1

HCID 178461555HCID 178461555, VerbindungAusbeute 13 %

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of (2R,5R)-1-((4-chlorophenoxy)methyl)carbonyl-2-methyl-4-(4-fluorobenzyl)-5-((hydroxy)methyl)piperazine (0.17 g, 0.42 mmol) in CH2Cl2 (50 mL) at 0° C. was added triethylamine (excess) and methane sulfonyl chloride (0.050 mL, 0.5 mmol). The resultant mixture was stirred at 0° C. until consumption of alcohol was observed by TLC analysis. The mixture was concentrated of volatiles in vacuo. Residue was taken up in anhydrous DMF (5 mL) and K2CO3 (excess) added, followed by tetrazole (0.050 g, 0.71 mmol). The resulting mixture was stirred at ambient temperature for 3 days and filtered. The filtrate was concentrated in vacuo and the residue taken up in ethyl acetate. This was washed with water then brine, then dried over MgSO4 and concentrated in vacuo to afford a yellow oil. Purification by flash column chromatography on silica gel afforded 25 mg of (2R,5R)-1-((4-chlorophenoxy)methyl)carbonyl-2-methyl-4-(4-fluorobenzyl)-5-((tetrazolyl)methyl)piperazine as a white solid: NMR (CDCl3) 7.3 (m, 5), 7.0 (m, 4), 4.8-4.1 (m, 5), 3.8 (m, 3), 3.2 (m, 2), 2.8 (dd, 1), 2.5 (dd, 1), 1.4 (d, 3) ppm, MS (ESI) 458.

Aufarbeitung

  1. concentrationThe mixture was concentrated of volatiles in vacuo
  2. additionK2CO3 (excess) added
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated in vacuo
  5. washThis was washed with water
  6. dry with materialbrine, then dried over MgSO4
  7. concentrationconcentrated in vacuo
  8. customto afford a yellow oil
  9. customPurification by flash column chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-172a1acc97ae4742abcfc1bc791e368f
Quelldatensatz
uspto-grants-2003_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06555537B2

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